Forced-feed lubricator



F. A. GO0DFELLOW. FORCED FEED LUBRICATOR.

APPLICATION man AuG.3, 1920.

Patented Feb. 22,1921.

2 SHEETS-SHEET l.

lIl- L Hg WITNESS E. A. GOODFELLOW.

FORCED FEED LUBRICATOR.

APPLICATION FILED AUG3, 1920.

1,369,422. Petentea Feb. 22,1921.

AHORA/Ev FRANK A. GOODFELLOW, 0F ALTOGNA, PENNSYLVANIA.

FORCED-FEED LUBRICATOR.

Application filed August 3, 1920. Serial No. 400,950.

To aZZcvwm it may concern.'

Be it known that I, FRANK YA. Gooornl.- Low, a citizen of the United States of America, and resident of Altoona, in theV county of Blair and State of Pennsylvania, have invented a certain new and useful Improvement in Forced-Feed Lubricators, of which Vthe following is a true and exact description, reference being had to the accompanying drawings, which formA a. part thereof.

My invention relates to' a forced feedlubricator and `has for its object to provide a lubricating device which will give a practically continuous feed and flow of oil' and in which the operative partsv are so arranged in connection with an oil reservoir as to mal-:e them very accessible for inspectionand repairs or replacements. yfurther advantageous feature whichV have in view is to provide a practically straight passage for the oil from the reservoir'through the pumps to the passage outlet of the pumps. v, The nature of my improvements'will be best understood as described in connection with the drawings in which they are illus- `trated and in which- Figure l is an end view of a reservoir, feeding pumps and pump actuating mechanism attached externally to the sidesthereof, th e reservoir being shown in section on the broken line 1 1 of Fig. 2 and one' of the pumps being shown in section on the ,drawn from the reservoir.

line 2-2 of Fig. 2, and Y. l i

'F ig. 2 is a side elevation of the reservoir ating` mechanism.Y A y A is the reservoirY from the bottom of which leads a number of passages A', one

.only being` shown in section, for the delivery of 'oillto thedifferent pumps.. vA2 is a chamber formed vbelow the pump of the reservoir through which aheating luidcan bepassied to heat the oil.,V A3 is a conduit through which the oil or Sludge can be with- A isa hollow chamber extending from `side to side of the lresc-:rvoi'r-through which-passes an actuating shaft for the pumps; B is the cover plate of" the reservoir, formed in which is `an yopening' B', and anY ,upwardly entending internally threaded iange B2.V Cr is a closing cap screwing into the threaded flange B2 and preferably formed, as shown, withva high, dome-like opening so that after Vthe oil expands it can `find room for oil channels l"dicated at L.

its increased bulk in the cup. D is a lter which is advantageously secured in the opening VB', as shown. E, E, are bearings for the actuating shaft which is indicated at F. This shaft canbe rotated by any suitable devices and I have not shown such actuating mechanism save that. At Gr there is indicated, though not shown in detail, rthe location of a brake ratchet which have used to prevent reverse motion of the shaft in connection with other mechamsm (not shown) for rotating the shaft. G G are cams, preferably jeccentrics, secured to the shaft l? on opposite sides of the reservoir. rlhe shaft may be rotated by any convenient attachment. none being shown in the drawings. H, H', are plunger holding members secured to the bottom of the reservoir on each side, the portions H of these members having formed in them H2 which register with the channels A and having also formed in them passages H3 the upper ends of which are threaded as indicated at H4. carry the channels 2 through the members H closing their ends with a Vscrew plug I-F, ass shown, and by removing these plugs ready access is given to passages H2, A', for cleaning and air or steam vcan be forced into the passages H2 and thrmighv the bottom plungers and valves to clean them out.V I is a valve bon situatedin the-passage H3, as shown, and 1 provided with a non-return valve preferablya double valve consisting of the two valves l and I2. J, J, are plungers screwing into the threaded opening H4, as shown, and formed with a central perforation 'J'. l, K, are plunger holding members secured to the'v top of the reservoir on each side by means of'their flanges, K. These members K are formed with threaded perforations K? into which screw the downwardly extending plunger-s L which are made of one-half the area of the plungers J and longitudinally perforated as inn M, M, are oil ducts connected with the topsfof the plungers L; each pair ofv plungers J .and L are located in alinement oneA above thevother. N is a plate or casting in which is formedY a yoke N havin contact faces NZ-Nzwhich operate in connection. with an, eccentric G. Formed 4or secured to the plate N are the cylinder holding members N3 N3 which, as shown in Fig. l, have formed in themthe cylindrical chambers, one indicated at N* in the lower end and the other one indicated at N5 at about the middle ofthe member and separated from the chamber N4 by a perforatedL partition Y(7 and a third chamber N6 which may pr-actically form a continuation of the chamber AN5 which extends to the top of the member. The ends of the members N3 are externally threaded, as shown. O is a cylinder adapted to operate in connection with the end of the plunger J, the cylinder being situated in the chamber N4 and made tight by the packing IJ and the gland indicated at P', P2. Q, is a valve casing situw ated in the chamber N5 and provided referably with two non-return valves el and Q2. O is a cylinder fitting on the end of the plunger L and held in the chamber N6 by a packing and gland similar to that which holds the lower cylinder in position. R, Fig. 2, s an oil cup and R a duct leading from it to lubricate the yoke and eccentric.

In operation the cylinder holding ineinbers and the cylinders secured therein have a reciprocating motion communicated to them by the eccentric on the shaft M, this motion being alined by the stationary pistons. VDuring the upward movement of the cylinders oil passes through the ports A', H2 and non-return valve I, through the perfor-ation J of the plunger .I into the cylinder O. On the downward movement of the cylinder the oil is forced past the non- Vreturn valve or valves of the valve casing Q into the cylinder O and as this cylinder is of only half the area of the cylinder O one lhalf of the oil forced into it will pass through the perforations of the stationary plunger L' to the delivery conduit IWI and, when the cylinders again move upward, the remainder of the oil in the cylinder O or such part of` it as may be provided for by the clearance given, is forced .through the perforation in the plunger L so that a practically continuous and even flow of oil is maintained through the double acting pump. It will be obvious that all operative parts my structure are readily accessible 'for inspection, repair or. replacement and for this purpose it allows of the convenient remoral of the plungers which, as is the case with the plunger L in the construction illusiii-atei., can be made removable in a direction -ay from their opposing plungers. It will also be obvious that by my construction ducts through which the oil passes through the apparatus are straight'away and as little as possible 4obstructed or complicated.

Having now described my invention, what I claim as Vnew and desire to secure by Letters Patent, is:

1.. In combination with a lubricator reservoir two perforated pump plungers of different diameters secured one above the other on the outside of the reservoir, reciprocating vturn valve in said passage and cylinders fitting on the ends of the perforated plungers, a passage leading from the reservoir Ato the perforation in one of the plungers, a non-return valve in said passage, a passage connecting the cylinders, a noni'eturn valve in said passage and an oil duct connected to the perforation of the second plunger.

2. In combination with a lubricator reservoir two perforated pump plungers of different diameters detachably secured one above the other on the outside of the reservoir, reciprocating cylinders fitting on the ends 0f the perforated plungers, a passage leading from the reservoir to the perforation in one of the plungers, a non-return valve in said passage, a passage connecting the cylinders, a non-return valve in said passage and an oil duct connected to the perforation ofI the second plunger.

3. In combination witha lubricator reservoir two perforated pump plungers of different diameters secured one above the other on the outside of the reservoir, reciprocating cylinders, fitting on the ends of the perforated plungers, a passage leading from the reservoir to the perforation in the larger plunger, a non-return valve in said passage, a passage connecting the cylinders, a non-rean oil duct connected to the perforation of the second plunger.

4. In combination with a lubricator. reservoir two perforated pump plungers of different diameters secured one above the other on the outside of the reservoir, a reci rocating member, cylinders secured in sai meml ber and fitting on the ends ofthe plungers,

a passage connecting the cylinders, a non-y return valve in said passage, a passage connecting the reservoir with the perforation in the larger plunger and a non-return valve in said passage.

5. In combination with a lubricator resern voir plunger holding members secured on the outside of thev reservoirdetachable pump plungers of different diameters secured one above the other to said members and formed with perforations extending throu h them, one of said plungers being remova le from .its holding member in a direction away from the other plunger, an oil duct having a nonreturn valve connecting the reservoir with the perforation of the larger plunger, reciprocating cylinders fitting on and guided by the plunger ends and a passage with a non- 'return valve connecting said cylinders. Y

6. In combination with a lubricator reservoir, a rotatable shaft extending through the reservoir carrying cams on opposite outer sides of the reservoir,two pairs of perforated plungers detachably secured to the lower sides of the reservoir and extending upward on opposite sides of the shaft, two pairs of perforated detachable plungers of smaller diameter secured to the upper sides of the reservoir and extending downward in aline- Inent with the larger plungers, two cylinder holding members having yokes With which the cams operate to reciprocate the members, cylinders held in said members ft-ting on and guided by the plunger ends,

oil passages leading from the reservoir to the bottom of the larger perforated plunger,

a non-return valve in each said passage, pas- 10 sages connecting the cylinders located one above the other and non-return Valves in said passages.

FRANK A. GOODFELLOW. 

